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Name
  RY Sco  
AAVSO UID
000-BBZ-476 (2725 observations)  
Constellation
Scorpius Sequence
J2000.0
17 50 52.30 -33 42 20.0  (267.71792 -33.70556) Search nearby
B1950.0 17 47 34.06 -33 41 32.9
Galactic coord. 356.489 -3.419
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1744-33 ASAS J175052-3342.3 CD-33 12533
CPD-33 4644 HD 162102 HIP 87345
OGLE BUL-SC40 V0057 OGLE BUL-SC40 V0058 OGLE BUL-SC40 V0076
OGLE BUL-SC40 V0087 OGLE BUL-SC40 V0093 SAO 209340
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Variability type
DCEP
Spectral type F6-G2
Mag. range
7.51 - 8.44 V
Discoverer --
Epoch
28 Mar 1936 (HJD 2428256.45) Ephemeris
Outburst --
Period 20.31322 d
Rise/eclipse dur. 37%  (7.516 d)
Remarks
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1 Otero, Sebastian Alberto ASAS-3 magnitudes contaminated by TYC 7381-540-1 (V= 10.71; sep. 15"). Range has been corrected. Combined range V= 7.45 - 8.22.
2 GCVS Team P var, nonlinear term: +4.10d*10**(-6)*E**2. [A/H] = 0.2. VB A (B 10.70m, F8:, 13.8", 220.5deg, 1965; C 11.5m, 2.0", 102deg, 1964; D 11.43m, 24", 80deg). Combined brightness of AC is given.
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References
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1 P. Pietrukowicz, W.A. Dziembowski, P. Mroz et al., 2013, arXiv:1311.5894
[astro-ph.GA]		 2013arXiv1311.5894P
2 Devor J., 2005, ApJ 628, 411 2005ApJ...628..411D
3 M.K. Szymanski, 2005, Acta Astron. 55, 43 (online data) 2005AcA....55...43S
4 M.K. Szymanski, 2005, Acta Astron. 55, 43 (online data) 2005AcA....55...43S
5 M.K. Szymanski, 2005, Acta Astron. 55, 43 (online data) 2005AcA....55...43S
6 M.K. Szymanski, 2005, Acta Astron. 55, 43 (online data) 2005AcA....55...43S
7 M.K. Szymanski, 2005, Acta Astron. 55, 43 (online data) 2005AcA....55...43S
8 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
9 G.E.Erleksova, B.N.Irkaev, Perem. Zvezdy 21, N5, 715, 1982. 1982PZ.....21..715E
10 A.Ya.Filin, Stalinabad Byull. N24, 1958. --
11 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
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Supporting Documents
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Stellar Association Membership
 NGC 6475 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Fernig, Leo 2022-04-22 13:34 UTC Discoverer updated from 1907AnHar..55....1C page 21
3 Otero, Sebastian Alberto 2013-11-06 04:39 UTC Period, epoch, rise duration and range from ASAS-3 data.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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